package com.yr.feiyu.common.util;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
 * 
 * <p class="detail">
 * 描述：MD5加密工具
 * </p>
 * @ClassName: MD5Util
 * @version V1.0  
 * @date 2015年11月8日 
 * @author <a href="mailto:1435290472@qq.com">zq</a>
 */
public class MD5Util {
	
	public static String getMD5Str(String str) {    
		MessageDigest messageDigest = null;      
		try {      
			messageDigest = MessageDigest.getInstance("MD5");      
			messageDigest.reset();      
	    	messageDigest.update(str.getBytes("UTF-8"));      
	 	} catch (NoSuchAlgorithmException e) {      
	 		System.out.println("NoSuchAlgorithmException caught!");      
			System.exit(-1);      
		} catch (UnsupportedEncodingException e) {      
			e.printStackTrace();      
	  	}      
	 	byte[] byteArray = messageDigest.digest();      
		StringBuffer md5StrBuff = new StringBuffer();      
		for (int i = 0; i < byteArray.length; i++) {                  
			if (Integer.toHexString(0xFF & byteArray[i]).length() == 1) {   
				md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));      
			} else {      
				md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));      
	        }      
		}
		
		return md5StrBuff.toString();
	}
}
